Subject: [MMUSIC] [Technical Errata Reported] RFC4566 (1795)

From: RFC Errata System <[email-masked]>
Date: Fri, 19 Jun 2009 06:51:10 -0700 (PDT)

The following errata report has been submitted for RFC4566,
"SDP: Session Description Protocol".

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=4566&eid=1795

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Type: Technical
Reported by: Leandro Lucarella <[email-masked]>

Section: 9

Original Text
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   decimal-uchar =       DIGIT
                         / POS-DIGIT DIGIT
                         / ("1" 2*(DIGIT))
                         / ("2" ("0"/"1"/"2"/"3"/"4") DIGIT)
                         / ("2" "5" ("0"/"1"/"2"/"3"/"4"/"5"))

Corrected Text
--------------
   decimal-uchar =       DIGIT
                         / POS-DIGIT DIGIT
                         / ("1" 2(DIGIT))
                         / ("2" ("0"/"1"/"2"/"3"/"4") DIGIT)
                         / ("2" "5" ("0"/"1"/"2"/"3"/"4"/"5"))

Notes
-----
The "*" is removed from the 3rd line.

The current RFC accepts any number starting with "1" and followed by
2 or more digits (like 1000 or 123456789) as a valid "decimal-uchar"
because of this error, because "1" 2*(DIGIT) means 2 or more digits
following a "1". The correction, 2(DIGIT) means *exactly* 2 digits
following a "1", which covers the range 100-199.

Instructions:
-------------
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RFC4566 (draft-ietf-mmusic-sdp-new-26)
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Title               : SDP: Session Description Protocol
Publication Date    : July 2006
Author(s)           : M. Handley, V. Jacobson, C. Perkins
Category            : PROPOSED STANDARD
Source              : Multiparty Multimedia Session Control
Area                : Real-time Applications and Infrastructure
Stream              : IETF
Verifying Party     : IESG